Twenty years ago today Apple actually sued co-founder and former chairman Steve Jobs - just days after he resigned from the company.

Apple sued Jobs and fellow ex-Apple employee Rich Page on September 23, 1985. Both were ordered not to use any proprietary information for their post-Apple venture, and Jobs was charged with dereliction of duties as chairman of Apple.

Jobs was forced out of Apple in 1985 in a vicious power-play that left his erstwhile friend John Sculley in charge. In the words of BusinessWeek, Jobs was “hurt, humiliated, and disillusioned”.